UNDER 10V - 12v K2 battery 12.8v 9.6ah K2B12V10ET

THESE MODULES IN PARTICULAR CAME OUT OF MEDICAL APPLICATIONS. WE TESTED A LOT OF THEM AND THESE ARE THE UNITS THAT TESTED UNDER 10V SO WE ARE SELLING THEM CHEAP. IT IS POSSIBLE ALL CELLS WILL CHARGE AND WORK BUT IT IS ALSO POSSIBLE THAT SOME CELLS WILL NOT BE GOOD.  FOR $6 YOU GET 12 K2 LFP26650EV 3200MAH CELLS IN 4S3P, A NICE ENCLOSURE, AND THE PCB BOARD IN THIS MODEL IS NOT A BMS.

I KNOW WHAT YOU'RE THINKING, THAT'S A CRAPPY DESIGNED BATTERY WITHOUT A BMS, AND YOU'RE ABSOLUTELY RIGHT. THEY SHOULD HAVE HAD A BMS BUT I GUESS THEY ARE CONFIDENT ENOUGH IN THE SAFETY OF THE K2 LIFEPO4 CELLS THAT THEY FIGURED IT WASN'T NECESSARY. THESE WERE USED IN EMERGENCY BACKUP LIGHTING FIXTURES.

CELL SPECS ARE BELOW AND THE DATASHEET IS IN THE 2ND PHOTO FOR THE CELLS AS WELL.

Brand: K2
Model: LFP26650EV
Capacity: 3200mah
Watt Hours: 10.24
Nominal Voltage: 3.2
Fully Charged Voltage: 3.65 (recommended), 4.1 (maximum)
Fully Discharged Voltage: 2.5 (recommended), 2.0 (maximum)
Continuous Discharge (A): 12
Pulse 30 Seconds Discharge (A): 28
Charge Current (A): 3.2